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Campelo FS, de Aguiar Cordeiro R, Moura FEA. The role of human bocavirus as an agent of community-acquired pneumonia in children under 5 years of age in Fortaleza, Ceará (Northeast Brazil). Braz J Microbiol 2022; 53:1915-1924. [PMID: 35933553 PMCID: PMC9679084 DOI: 10.1007/s42770-022-00806-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 07/21/2022] [Indexed: 01/13/2023] Open
Abstract
The human bocavirus (HBoV) is an agent of upper and lower respiratory infections, affecting mainly children under 5 years of age. Community-acquired pneumonia (CAP) is an important public health problem in developing countries, representing one of the main causes of hospitalizations and deaths in children. The aim of this study was to describe the prevalence of HBoV and the clinical and epidemiological characteristics in children diagnosed with CAP. For this purpose, nasopharyngeal aspirates were collected from 545 children aged 0 to 60 months diagnosed with CAP between January 2013 and December 2014 in a reference pediatric hospital in Fortaleza, Ceará, Brazil. The samples were subjected to PCR for detection of HBoV and parainfluenza 4 (PIV4) and indirect immunofluorescence for detection of respiratory syncytial virus (RSV), adenovirus (AdV), influenza A and B (FLU A and FLU B), and parainfluenza 1, 2, and 3 (PIV1, PIV2, PIV3). Clinically, most CAP were non-complicated (487/545; 89.3%); however, 10.7% (58/545) of children were treated in the ICU/resuscitation sector. Among the total samples analyzed, 359 (65.8%) were positive for at least one virus surveyed and 105 (19.2%) samples had two or more viruses. HBoV was detected in 87 samples (15.9%), being the second most prevalent virus. RSV, AdV, FLU A, FLU B, and PIV 1-3 were detected in 150 (27.5%), 45 (8.2%), 30 (5.5%), 3 (0.5%), and 131 (24%) samples, respectively. The age average was 12.1 months in children infected with HBoV, and the most frequent symptoms were dyspnea and cough. In addition, 90.6% of HboV-positive children received antibiotics as empirical treatment. HBoV did not show any circulation pattern; however, it seemed to be more frequent in the first half of the year, totaling 68.9% of the cases. HBoV is a frequent agent of pneumonia in the child population studied.
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Affiliation(s)
- Felipe Serra Campelo
- Postgraduate Program in Medical Sciences, Federal University of Ceará, Fortaleza, Brazil
| | - Rossana de Aguiar Cordeiro
- Postgraduate Program in Medical Sciences, Federal University of Ceará, Fortaleza, Brazil ,Postgraduate Program in Medical Microbiology, Federal University of Ceará, Fortaleza, Brazil
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Hussein Lazim H, Hussain Ali S, Abdul-Amir AS, Salim AB. A STUDY OF THE NOVEL WU AND KI POLYOMAVIRUSES, BOCAVIRUS ADENOVIRUS IN CHILDREN WITH UPPER RESPIRATORY TRACT INFECTIONS. WIADOMOSCI LEKARSKIE (WARSAW, POLAND : 1960) 2022; 75:1678-1682. [PMID: 35962680 DOI: 10.36740/wlek202207112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE The aim: To find out the frequency of WU and KI polyomaviruses, and Human Boca and Adenoviruses infections among children with different types of acute upper respiratory tract infections and to compare the frequency of these viruses among immune-competent and immune compromised patients. PATIENTS AND METHODS Materials and methods: A case-control study conducted in children aged 3-18 years with acute upper respiratory tract infections. The samples were taken from: Group 1: 100 immuno competent children with acute upper respiratory tract infections. Group 2: 100 immuno compromised children (Leukemic, cancer, Nephrotic syndrome, chronic renal failure and children with renal transplant) with acute upper respiratory tract infections. Group 3: 100 apparently healthy children without respiratory infections as control group. Nasal swap samples were collected from children and then viral DNA extracted from these samples. Then detection of WU, KI polyomaviruses HBoV and HAdv was done by using real time PCR. RESULTS Results: All of 300 samples were negative for WU and KI polyomaviruses. However, human Bocavirus was detected in the three groups (immunocompromised, immunocompetent and control group) and the positivity rates were 61.61%, 37.37% and 18.18%, respectively. While human adenovirus was found only in 2% of immunocompromised patients and 1.1% of immunocompetent patients also there were cases positive for both HBoV and HAdv in 5.5% of immunocompromised patients, and 8.8% of immunocompetent patients. CONCLUSION Conclusions: High frequency of HBoV especially in immunocompromised patients while low number of positive cases for HAdv by using nasal swab samples, WU and KI polyomaviruses could not be detected in samples.
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Castro LRP, Calvet FC, Sousa KL, Silva VP, Lobo PS, Penha ET, Guerra SFS, Bezerra DAM, Mascarenhas JDP, Pinheiro HHC, Costa IB, Resque HR, Soares LS. Prevalence of rotavirus and human bocavirus in immunosuppressed individuals after renal transplantation in the Northern Region of Brazil. J Med Virol 2019; 91:2125-2133. [PMID: 31429939 DOI: 10.1002/jmv.25569] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 08/05/2019] [Indexed: 12/16/2022]
Abstract
Immunosuppressive therapy causes severe impairment of host defense and diarrhea is a frequent complication in renal transplant recipients. This study aimed to describe the occurrence of Rotavirus A (RVA) and Human Bocavirus (HBoV) in fecal samples of immunosuppressed patients submitted to renal transplantation during posttransplant follow-up. A longitudinal study was carried out involving a 25-patient cohort, selected for kidney transplantation. A total of 126 fecal samples were collected between May 2014 and May 2016. Molecular techniques were used to detect and characterize circulating RVA and HBoV genotypes and statistical analysis were applied to verify the association between epidemiological and clinical characteristics. The prevalence of RVA and HBoV was 24% (6/25) and 40% (10/25), respectively. Among RVA and HBoV positive cases, the majority was female; did not conduct water treatment nor had adequate sewage facilities. The most detected genotypes were RVA G3 (62.5%) and HBoV-3 (95%). Phylogenetic analysis of HBoV strains indicated that studied samples were similar to those found in Asian and American countries. The present study point out the circulation of these viral agents among immunosuppressed individuals and these findings will enable the construction of new knowledge and care perspectives on the cause of diarrhea in this population.
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Affiliation(s)
- Luanda R P Castro
- Postgraduate Program in Epidemiology and Surveillance in Health, Evandro Chagas Institute, Ananindeua, Pará, Brazil
| | - Flávio C Calvet
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Karoline L Sousa
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Victor P Silva
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Patrícia S Lobo
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Edvaldo T Penha
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Sylvia F S Guerra
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Delana A M Bezerra
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Joana D P Mascarenhas
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Helder H C Pinheiro
- Center for Tropical Medicine, Federal University of Pará, Belém, Pará, Brazil
| | - Igor B Costa
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Hugo R Resque
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
| | - Luana S Soares
- Laboratory of Rotavirus, Virology Section, Evandro Chagas Institute, Health Surveillance Secretariat, Brazilian Ministry of Health, Ananindeua, Pará, Brazil
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Costa BCL, Dábilla NAS, Almeida TN, Fiaccadori FS, de Souza TT, das Dores de Paula Cardoso D, de Moraes Arantes A, Souza M. Human bocavirus detection and quantification in fecal and serum specimens from recipients of allogeneic hematopoietic stem cell transplantation: A longitudinal study. J Med Virol 2019; 94:594-600. [PMID: 30982975 DOI: 10.1002/jmv.25486] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 04/10/2019] [Accepted: 04/11/2019] [Indexed: 12/14/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate the occurrence of human bocavirus (HBoV) and to determine viral loads in samples of patients admitted for allogeneic hematopoietic stem cell transplantation (allo-HSCT). METHODS Fecal and serum samples were collected from 19 patients, during a 24-month period. Samples were screened by quantitative polymerase chain reaction TaqMan assay, with specific probe and primers targeting the NP1 gene of all HBoVs genotypes (HBoV-1 to - 4), and viral loads were determined using serial dilutions of a recombinant plasmid. RESULTS HBoV DNA was detected in 42.1% (8 of 19) of the patients in at least one type of sample (feces and/or serum) during the study period, with 75% (6 of 8) of the patients being positive in both types of sample. Viral shedding in feces had a median of 26 days (range, 5 to 121) and viremia was detected in 87.5% (7 of 8) of the patients. The HBoV loads in fecal samples were higher than in sera and, in most cases, HBoV was detected earlier in fecal than in sera samples. In six HBoV-positive patients (6 of 8) diarrhea was observed concomitantly to viral detection in fecal samples. CONCLUSIONS A high frequency and loads of HBoV in allo-HSCT recipients was observed, especially in fecal samples. Positivity in fecal samples was an early predictor of HBoV presence.
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Affiliation(s)
- Brunno Câmara Lopes Costa
- Laboratory of Virology and Cell Culture, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Nathânia Alves Silva Dábilla
- Laboratory of Virology and Cell Culture, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Tâmera Nunes Almeida
- Laboratory of Virology and Cell Culture, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Fabíola Souza Fiaccadori
- Laboratory of Virology and Cell Culture, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Teresinha Teixeira de Souza
- Laboratory of Virology and Cell Culture, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Divina das Dores de Paula Cardoso
- Laboratory of Virology and Cell Culture, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | | | - Menira Souza
- Laboratory of Virology and Cell Culture, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
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Silva PE, Figueiredo CA, Luchs A, de Paiva TM, Pinho MAB, Paulino RS, da Silva DBB, de Oliveira Santos KC, Afonso AMS, de Oliveira MI. Human bocavirus in hospitalized children under 5 years with acute respiratory infection, São Paulo, Brazil, 2010. Arch Virol 2018; 163:1325-1330. [PMID: 29392492 PMCID: PMC7087275 DOI: 10.1007/s00705-017-3694-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 11/13/2017] [Indexed: 12/19/2022]
Abstract
The aims of this study were to investigate the human bocavirus (HBoV) frequency and genotypes in hospitalized children <5 years presenting acute respiratory infections (ARI) within the São Paulo metropolitan area. Nasopharyngeal samples from 300 patients, previously screened for common respiratory viruses, were tested by qPCR for the NSP1 and NP-1 genes. The VP1/2 gene in positive samples was then amplified by PCR and sequenced. A total of 49 positive HBoV cases (16.3%; mean Ct value of 34.41) were detected with the mean age being 18.1 months (range 1 month to 5 years) and the median age being 1 year of age. Children aged between 0 and 12 months had higher detection rates of HBoV (69.4%; 34/49; mean Ct = 34.45) than children from other age groups (30.6%; 15/49; mean Ct = 34.34). No significant differences were observed between HBoV Ct levels and clinical illness. The occurrence was more frequently associated with fall (38.8%; 19/49) and spring (36.7%; 18/49). All 12 sequenced isolates were identified as HBoV-1, displaying minor genetic variation compared to the Swedish reference strains ST1 and ST2 (99.1–99.7% nt). The sole identification of HBoV-1 supports the hypothesis that this particular genotype is strongly related to ARI, and contributes to the role of this virus in the aetiology of respiratory diseases.
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Affiliation(s)
- Patricia Evelin Silva
- Instituto Adolfo Lutz, Centro de Virologia, Núcleo de Doenças Respiratórias, Av. Dr. Arnaldo, 355, São Paulo, CEP 01246-902, Brazil
| | - Cristina Adelaide Figueiredo
- Instituto Adolfo Lutz, Centro de Virologia, Núcleo de Doenças Respiratórias, Av. Dr. Arnaldo, 355, São Paulo, CEP 01246-902, Brazil
| | - Adriana Luchs
- Instituto Adolfo Lutz, Centro de Virologia, Núcleo de Doenças Entéricas, Av. Dr. Arnaldo, 355, São Paulo, CEP 01246-902, Brazil
| | - Terezinha Maria de Paiva
- Instituto Adolfo Lutz, Centro de Virologia, Núcleo de Doenças Respiratórias, Av. Dr. Arnaldo, 355, São Paulo, CEP 01246-902, Brazil
| | - Margarete Aparecida Benega Pinho
- Instituto Adolfo Lutz, Centro de Virologia, Núcleo de Doenças Respiratórias, Av. Dr. Arnaldo, 355, São Paulo, CEP 01246-902, Brazil
| | - Renato Sousa Paulino
- Instituto Adolfo Lutz, Centro de Virologia, Núcleo de Doenças Respiratórias, Av. Dr. Arnaldo, 355, São Paulo, CEP 01246-902, Brazil
| | | | - Katia Corrêa de Oliveira Santos
- Instituto Adolfo Lutz, Centro de Virologia, Núcleo de Doenças Respiratórias, Av. Dr. Arnaldo, 355, São Paulo, CEP 01246-902, Brazil
| | - Ana Maria Sardinha Afonso
- Instituto Adolfo Lutz, Centro de Virologia, Núcleo de Doenças Respiratórias, Av. Dr. Arnaldo, 355, São Paulo, CEP 01246-902, Brazil
| | - Maria Isabel de Oliveira
- Instituto Adolfo Lutz, Centro de Virologia, Núcleo de Doenças Respiratórias, Av. Dr. Arnaldo, 355, São Paulo, CEP 01246-902, Brazil.
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